Understanding Betting Odds: Plus and Minus Explained

If you’re new to sports on-casino betting, understanding betting odds is crucial. Odds determine the potential payout and probability of an event occurring in a sports wager. In this article, we will focus on two common types of betting odds: plus and minus. We will explain what they mean, how they are calculated, and how they can help you make informed betting decisions.

Understanding Betting Odds

Betting odds represent the likelihood of a possibility in a sports match or any other on-casino betting scenario. They are expressed in different formats, such as decimal, fractional, or American odds. These odds provide valuable information for bettors, enabling them to assess their bets’ potential risks and rewards.

What are Plus and Minus Odds?

Plus and minus odds, also known as American or moneyline odds, are among the most widely used formats in sports betting. These odds are positive (+) or negative (-) numbers. Plus odds indicate the potential profit on a $100 bet, while minus odds represent the amount you need to wager to win $100.

Calculating Plus and Minus Odds

The calculation of plus and minus odds is relatively straightforward. Let’s take a closer look at how they are determined:

  • Plus Odds Calculation: Plus odds are calculated by dividing the potential profit by the stake and multiplying it by 100. For example, if the odds are +250, you would win $250 on a $100 bet.
  • Minus Odds Calculation: Minus odds represent the amount you need to wager to win $100. To calculate the potential profit, divide 100 by the odds and multiply it by the stake. For instance, if the odds are -150, you must bet $150 to win $100.

Plus Odds: The Underdog

Plus odds are associated with the underdog in a sports event. These odds indicate a higher potential payout compared to the amount wagered. For example, if a team has odds of +300 to win a basketball game, a $100 bet on that team would yield a profit of $300 if they win.

Minus Odds: The Favorite

Minus odds represent the favorite in a betting scenario. These odds indicate the amount you need to wager to win $100. Minus odds are commonly seen when one team or player is expected to have a higher probability of winning. For instance, if a tennis player has odds of -200, you must bet $200 to win $100.

Implied Probability

Betting odds can also be translated into implied probabilities. The implied probability represents the likelihood of an event happening based on the odds. To calculate the implied probability, divide 100 by the odds plus 100. For example, if the odds are +250, the implied probability would be 28.57%.

Comparing Plus and Minus Odds

When comparing plus and minus odds, it’s essential to consider the risk-reward balance. Plus, odds offer higher potential returns but lower the probability of winning. Minus odds provide a higher probability of winning but offer lower potential profits. Understanding the implied probabilities can help you assess the value of a bet.

Using Plus and Minus Odds to Determine Payouts

To determine the potential payout from plus and minus odds, you can use the following formulas:

  • Plus Odds Payout: Payout = (Odds/100) x Stake + Stake
  • Minus Odds Payout: Payout = (100/Odds) x Stake + Stake

These formulas allow you to calculate the total amount you would receive if your bet is successful, including the initial stake.

Factors Affecting Plus and Minus Odds

Several factors can influence a sports betting scenario’s plus and minus odds. These factors include team or player performance, injuries, weather conditions, historical data, and public opinion. Analyzing these factors and staying updated with relevant information is crucial to make informed betting decisions.

Managing Risks and Making Informed Bets

Successful betting requires managing risks and making well-informed bets. Here are a few tips to help you improve your betting strategy:

  • Conduct thorough research on teams, players, and historical data.
  • Stay updated with relevant news and information.
  • Set a budget and stick to it.
  • Avoid chasing losses and betting impulsively.
  • Use a disciplined approach and avoid emotional decisions.
  • Consider utilizing betting strategies such as value betting or bankroll management techniques.

Understanding Odds Formats

In addition to plus and minus odds, other formats are used to represent betting odds, including decimal and fractional odds. Familiarize yourself with these formats to enhance your understanding of sports betting.

Common Mistakes to Avoid

When engaging in sports betting, it’s essential to avoid typical mistakes that can negatively affect your betting experience. Some common mistakes include:

  • Overlooking research and relying solely on intuition.
  • Betting on your favorite team without considering objective factors.
  • Chasing losses and increasing bet sizes to recover losses.
  • Ignoring proper bankroll management techniques.
  • You need to shop for the best odds available.

Tips for Successful Betting

To improve your chances of success in sports betting, consider the following tips:

  • Analyze statistics, team performances, and historical data.
  • Develop a betting strategy based on research and analysis.
  • Start with small bets and gradually expand your stakes.
  • Utilize bankroll management techniques to protect your funds.
  • Take advantage of promotions and bonuses presented by bookmakers.
  • Stay disciplined and avoid impulsive betting decisions.


Understanding betting odds, plus and minus, is crucial for anyone interested in sports betting. These odds provide valuable insights into a wager’s potential risks and rewards. By comprehending the concepts in this article and conducting thorough research, you can make more informed betting decisions and boost your chances of success.